In a dystopian future where a plague has transformed most of the human population into vampires, "Daybreakers" explores the struggle for survival of the remaining humans. The story follows Edward Dalton, a vampire hematologist played by Ethan Hawke, who is tasked with finding a blood substitute to save his kind from extinction. As the vampire society faces a critical shortage of human blood, Edward encounters a group of survivors led by the fierce and determined Vanessa, portrayed by Claudia Karvan. Together, they embark on a mission to restore humanity and fight against the oppressive vampire regime. The film delves into themes of morality, survival, and the consequences of unchecked power, all while delivering a thrilling blend of horror and science fiction.